Log in to the site on a computer, click on your user name at top right, select Profile and Settings then Account information.
Note that the name shown on an invoice will be the one you entered in the First Name and Last Name fields in Profile and Settings. This name cannot be changed after a purchase has been made. It's also important to note that your postal address is unknown to us, is not part of the contract, and cannot be printed on the invoice.
If you subscribed via the Apple App Store, invoices will be sent to the email address connected to the Apple account you used when making the purchase.
If you subscribed via the Google Play Store, a confirmation email will be sent to the Google Account you used when making the purchase. Please see the following link: Receipts & order numbers